/*
 * Copyright (C) 2012 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;

import java.util.Iterator;

import org.junit.Ignore;

/**
 * Tester for {@code BiMap.remove}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class BiMapRemoveTester<K, V> extends AbstractBiMapTester<K, V>
{
    @SuppressWarnings("unchecked")
    @MapFeature.Require(SUPPORTS_REMOVE)
    @CollectionSize.Require(absent = ZERO)
    public void testRemoveKeyRemovesFromInverse()
    {
        getMap().remove(k0());
        expectMissing(e0());
    }

    @SuppressWarnings("unchecked")
    @MapFeature.Require(SUPPORTS_REMOVE)
    @CollectionSize.Require(absent = ZERO)
    public void testRemoveKeyFromKeySetRemovesFromInverse()
    {
        getMap().keySet().remove(k0());
        expectMissing(e0());
    }

    @SuppressWarnings("unchecked")
    @MapFeature.Require(SUPPORTS_REMOVE)
    @CollectionSize.Require(absent = ZERO)
    public void testRemoveFromValuesRemovesFromInverse()
    {
        getMap().values().remove(v0());
        expectMissing(e0());
    }

    @SuppressWarnings("unchecked")
    @MapFeature.Require(SUPPORTS_REMOVE)
    @CollectionSize.Require(absent = ZERO)
    public void testRemoveFromInverseRemovesFromForward()
    {
        getMap().inverse().remove(v0());
        expectMissing(e0());
    }

    @SuppressWarnings("unchecked")
    @MapFeature.Require(SUPPORTS_REMOVE)
    @CollectionSize.Require(absent = ZERO)
    public void testRemoveFromInverseKeySetRemovesFromForward()
    {
        getMap().inverse().keySet().remove(v0());
        expectMissing(e0());
    }

    @SuppressWarnings("unchecked")
    @MapFeature.Require(SUPPORTS_REMOVE)
    @CollectionSize.Require(absent = ZERO)
    public void testRemoveFromInverseValuesRemovesFromInverse()
    {
        getMap().inverse().values().remove(k0());
        expectMissing(e0());
    }

    @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
    @CollectionSize.Require(absent = ZERO)
    public void testKeySetIteratorRemove()
    {
        int initialSize = getNumElements();
        Iterator<K> iterator = getMap().keySet().iterator();
        iterator.next();
        iterator.remove();
        assertEquals(initialSize - 1, getMap().size());
        assertEquals(initialSize - 1, getMap().inverse().size());
    }
}
